In reply to martinrlyons:
I don't have very much to share, but I don't know how many responses you'll get so maybe this is of interest!...
I had my honeymoon there one year ago, so whilst it was primarily a cultural exploration, we did spend a little time in the mountains near Chimgan. We used a local contact who was Uzbek/Tajik, but spent most of the time telling us how much he preferred Tajikistan to Uzbekistan. We did a small bit of single pitch top roping on an off day and then a couple of attempts to climb Big Chimgan.
I won't give you my main contact as I would not recommend him at all. However, through him we spent time with a couple of local climbers including one incredibly strong and fit fell runner, and a lovely lady who we hiked with for a few days. PM me and I can share their details.
Few photos here if you are curious: https://photos.67hours.co.uk/uzbekistan (white line topos painted on the rocks were particularly amusing).